downslopesとは 意味・読み方・使い方

The ventilating duct is installed in the state that its portion intersecting the reverse face of the air-conditioner monotonously downslopes toward outside air, thus reducing the length of a ventilation passage and producing less air resistance because the bending angle of the ventilating duct is made smaller than conventional one during lateral or downward piping.例文帳に追加

また、換気ダクトを空気調和機の背面を横断する部分で外気に向かって単調な下り勾配に傾斜して設置して、換気経路の長さを短くすると共に、横又は下配管の時に、換気ダクトの曲がり角度を従来よりも小さくできるので、通風抵抗を低減できる。 - 特許庁